Shift register circuitry, gate driving circuit, and display device

ABSTRACT

The present disclosure provides a shift register circuitry, a gate driving circuit, and a display device. The shift register circuitry of the present disclosure includes a first shift register unit, a second shift register unit, a pull-down control sub-circuit ( 20 ), and a pull-down sub-circuit ( 30 ); wherein the first shift register unit includes a first input Sub-circuit ( 11 ), a first output sub-circuit ( 12 ), a first reset sub-circuit, and a first noise reduction sub-circuit ( 14 ); a second shift register unit includes a second input sub-circuit ( 21 ), a second output sub-circuit ( 22 ), a second reset sub-circuit and a second noise reduction sub-circuit ( 24 ).

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a U.S. National Stage under 35 U.S.C. § 371 ofInternational Application No. PCT/CN2017/111559, filed on Nov. 17, 2017,which claims priority to Chinese Patent Application No. 201710390668.5,filed on May 27, 2017. The disclosure of each application isincorporated hereby by reference in entirety.

TECHNICAL FIELD

The present disclosure relates to a shift register circuitry, a gatedriving circuit, and a display device.

BACKGROUND

With continuous development of liquid crystal display, high resolutionand narrow frames have become a development trend of liquid crystaldisplay. Application of gate shift registers in a panel is one ofapproaches to achieve a narrow frame and high resolution.

The Gate Driver on Array (GOA) design of a gate driver can lower cost ofa liquid crystal display panel while reducing a process to increaseproduction. With development of flat panel displays, high resolution andnarrow frames have become a development trend. To realize a highresolution and narrow frame display, one solution is to integrate gatedriving circuits on the panel.

SUMMARY

The present disclosure provides a shift register circuitry including: afirst shift register unit, a second shift register unit, a pull-downcontrol sub-circuit, and a pull-down sub-circuit. The first shiftregister unit comprises: a first input sub-circuit, a first outputsub-circuit, a first reset sub-circuit, and a first noise reductionsub-circuit. The second shift register unit includes: a second inputsub-circuit, a second output sub-circuit, a second reset sub-circuit,and a second noise reduction sub-circuit. The first input sub-circuit isconfigured to pre-charge a first pull-up node under control of a firstinput signal. The first pull-up node is a connection node between afirst input sub-circuit, a first output sub-circuit, a pull-downsub-circuit, the first reset sub-circuit, and the first noise reductionsub-circuit. The first output sub-circuit is configured to output afirst clock signal through a first signal output terminal under controlof a potential of the first pull-up node. The first reset sub-circuit isconfigured to reset potentials of the first pull-up node and the firstsignal output terminal through the first voltage signal under control ofa first reset signal. The second input sub-circuit is configured topre-charge a second pull-up node under control of a second input signal;the second pull-up node is a connection node between the second inputsub-circuit, the second output sub-circuit and the pull-downsub-circuit. The second output sub-circuit is configured to output asecond clock signal through a second signal output terminal undercontrol of a potential of the second pull-up node. The second resetsub-circuit is configured to reset potentials of the second pull-up nodeand the second signal output terminal through the first voltage signalunder control of a second reset signal. The pull-down controlsub-circuit is configured to control a potential of a pull-down nodeunder control of the first clock signal or the second clock signal; thepull-down node is a connection node between the pull-down controlsub-circuit, the pull-down sub-circuit, the first noise reductionsub-circuit and the second noise reduction sub-circuit. The pull-downsub-circuit is configured to pull down a potential of the pull-down nodethrough the first voltage signal under control of a potential of thefirst pull-up node and a potential of the second pull-up node. The firstnoise reduction sub-circuit is configured to reduce output noise of thefirst pull-up node and the first signal output terminal through thefirst voltage signal under control of the pull-down node. The secondnoise reduction sub-circuit is configured to reduce output noise of thesecond pull-up node and the second signal output terminal through thefirst voltage signal under control of the pull-down node.

In some embodiments, the shift register circuitry further includes astorage sub-circuit for maintaining the potential of the pull-down node.

In some embodiments, the first input sub-circuit includes a firsttransistor.

A first electrode and a control electrode of the first transistor areboth connected to a first input signal terminal, and a second electrodeof the first transistor is connected to the first pull-up node.

In some embodiments, the first output sub-circuit includes a thirdtransistor and a first storage capacitor.

A first electrode of the third transistor is connected to a first clocksignal terminal, a second electrode of the third transistor is connectedto a first signal output terminal, and a control electrode of the thirdtransistor is connected to the first pull-up node.

A first end of the first storage capacitor is connected to the firstpull-up node, and a second end of the first storage capacitor isconnected to the first signal output terminal.

In some embodiments, the first reset sub-circuit comprises: a secondtransistor and a thirteenth transistor.

A first electrode of the second transistor is connected to the firstpull-up node, a second electrode of the second transistor is connectedto a first voltage signal terminal, and a control electrode of thesecond transistor is connected to a first reset signal terminal.

A first electrode of the thirteenth transistor is connected to the firstsignal output terminal, a second electrode of the thirteenth transistoris connected to the first voltage signal terminal, and a controlelectrode of the thirteenth transistor is connected to a second clocksignal terminal.

In some embodiments, the first reset sub-circuit comprises: a secondtransistor and a thirteenth transistor.

A first electrode of the second transistor is connected to the firstpull-up node, a second electrode of the second transistor is connectedto a first voltage signal terminal, and a control electrode is connectedto a first reset signal terminal.

A first electrode of the thirteenth transistor is connected to the firstsignal output terminal, a second electrode of the thirteenth transistoris connected to a first voltage signal terminal, and a control electrodeof the thirteenth transistor is connected to a first reset signalterminal.

In some embodiments, the first noise reduction sub-circuit comprises afourth transistor and a fifteenth transistor.

A first electrode of the fourth transistor is connected to the firstsignal output terminal, a second electrode of the fourth transistor isconnected to a first voltage signal terminal, and a control electrode ofthe fourth transistor is connected to the pull-down node.

A first electrode of the fifteenth transistor is connected to the firstpull-up node, a second electrode of the fifteenth transistor isconnected to a first voltage signal terminal, and a control electrode ofthe fifteenth transistor is connected to the pull-down node.

In some embodiments, the second input sub-circuit comprises a fifthtransistor.

A first electrode and a control electrode of the fifth transistor areboth connected to a second input signal terminal, and a second electrodeof the fifth transistor is connected to the second pull-up node.

In some embodiments, the second output sub-circuit includes a seventhtransistor and a second storage capacitor.

A first electrode of the seventh transistor is connected to a secondclock signal terminal, a second electrode of the seventh transistor isconnected to the second signal output terminal, and a control electrodeof the seventh transistor is connected to the second pull-up node.

A first end of the second storage capacitor is connected to the secondpull-up node, and a second end of the second storage capacitor isconnected to the second signal output terminal.

In some embodiments, the second reset sub-circuit comprises a sixthtransistor and a fourteenth transistor.

A first electrode of the sixth transistor is connected to the secondpull-up node, a second electrode of the sixth transistor is connected toa first voltage signal terminal, and a control electrode of the sixthtransistor is connected to a second reset signal terminal. A firstelectrode of the fourteenth transistor is connected to the second signaloutput terminal, a second electrode of the fourteenth transistor isconnected to the first voltage signal terminal, and a control electrodeof the fourteenth transistor is connected to the first clock signalterminal.

In some embodiments, the second reset sub-circuit comprises a sixthtransistor and a fourteenth transistor.

A first electrode of the sixth transistor is connected to the secondpull-up node, a second electrode of the sixth transistor is connected toa first voltage signal terminal, and a control electrode of the sixthtransistor is connected to a second reset signal terminal.

A first electrode of the fourteenth transistor is connected to thesecond signal output terminal, a second electrode of the fourteenthtransistor is connected to the first voltage signal terminal, and acontrol electrode of the fourteenth transistor is connected to a secondreset signal terminal.

In some embodiments, the second noise reduction sub-circuit comprises aneighth transistor and a sixteenth transistor.

A first electrode of the eighth transistor is connected to the secondsignal output terminal, a second electrode of the eighth transistor isconnected to a first voltage signal terminal, and a control electrode ofthe eighth transistor is connected to the pull-down node.

A first electrode of the sixteenth transistor is connected to the secondpull-up node, a second electrode of the sixteenth transistor isconnected to a first voltage signal terminal, and a control electrode ofthe sixteenth transistor is connected to the pull-down node.

In some embodiments, the pull-down sub-circuit comprises a ninthtransistor, a tenth transistor, and a twelfth transistor.

A first electrode and a control electrode of the ninth transistor areboth connected to the first pull-up node, and a second electrode of theninth transistor is connected to a control electrode of the twelfthtransistor. A first electrode and a control electrode of the tenthtransistor are both connected to the second pull-up node, and a secondelectrode of the tenth transistor is connected to the control electrodeof the twelfth transistor. A first electrode of the twelfth transistoris connected to the pull-down node, a second electrode of the twelfthtransistor is connected to a first voltage signal terminal, and thecontrol electrode of the twelfth transistor is connected to the secondelectrode of the first transistor and the second electrode of the tenthtransistor.

In some embodiments, the pull-down control sub-circuit comprises aneleventh transistor.

A first electrode and a control electrode of the eleventh transistor areboth connected to a second clock signal terminal, and a second electrodeof the eleventh transistor is connected to the pull-down node.

In some embodiments, the pull-down control sub-circuit comprises aneleventh transistor.

A first electrode and a control electrode of the eleventh transistor areboth connected to a first clock signal terminal, and a second electrodeof the eleventh transistor is connected to the pull-down node.

In some embodiments, the storage sub-circuit includes a third storagecapacitor.

A first end of the third storage capacitor is connected to the pull-downnode, and a second end of the third storage capacitor is connected tothe first voltage signal terminal.

The present disclosure provides a gate driving circuit including shiftregister circuitries as above-mentioned.

In some embodiments, a first input signal terminal of a first shiftregister unit of a shift register circuitry at each stage is connectedto a second signal output terminal of a second shift register unit of ashift register circuitry at a previous stage.

A first reset signal terminal of the first shift register unit of theshift register circuitry at each stage is connected to a second signaloutput terminal of a second shift register unit of the shift registercircuitry at current stage.

A first signal output terminal of the first shift register unit of theshift register circuitry at each stage is connected to a second signalinput terminal of the second shift register unit of the shift registercircuitry at current stage.

A second signal output terminal of the second shift register unit of theshift register circuitry at each stage is connected to a first signalinput terminal of a first shift register unit of a shift registercircuitry at a next stage.

A second reset signal terminal of the second shift register unit of theshift register circuitry at each stage is connected to a first signaloutput terminal of a first shift register unit of the shift registercircuitry at the next stage.

The present disclosure provides a display device including theabove-described gate driving circuit.

BRIEF DESCRIPTION OF THE DRAWINGS

FIGS. 1-3 are schematic diagrams of shift registers according toembodiments of the present disclosure;

FIG. 4 is an operation timing diagram corresponding to the shiftregister of FIG. 1 according to embodiments of the present disclosure;

FIG. 5 is an operation timing diagram corresponding to the shiftregister of FIG. 3 according to embodiments of the present disclosure;

FIG. 6 is a cascade diagram of a gate driving circuit according toembodiments of the present disclosure.

DETAILED DESCRIPTION

To enable those skilled in the art to better understand the technicalsolutions of the present disclosure, the present disclosure will befurther described in detail below in conjunction with the accompanyingdrawings and specific implementations.

Transistors used in embodiments of the present disclosure may be thinfilm transistors, field effect transistors, or similar devices withother characteristics. Since sources and drains of the used transistorsare interchangeable under certain conditions, there is no differencebetween the sources and the drains in view of description of connectionrelationship. In embodiments of the present disclosure, in order todistinguish between a source and a drain of a transistor, one of them isreferred to as a first electrode, the other is referred to as a secondelectrode, and a gate is referred to as a control electrode. Inaddition, a transistor can be classified into an N-type transistor or aP-type transistor according to characteristics of the transistor. Thefollowing embodiments are described by taking N-type transistors as thetransistors. In case that an N-type transistor is used, the firstelectrode is the drain of the N-type transistor, and the secondelectrode is the source of the N-type transistor, wherein when a highlevel is input to the gate, the source and the drain are turned on; fora P-type transistor, the situation is opposite. It can be conceived thatimplementations by using P-type transistors as the transistors can beeasily conceived by those skilled in the art without paying any creativeeffort, and thus are also within a protection scope of the embodimentsof the present disclosure.

In the embodiments of the present disclosure, the explanation is made bytaking a thin film transistor which is an N-type transistor as anexample. Therefore, in the following description, the first voltagesignal is a low-level signal, and the first voltage signal terminal is alow-level signal terminal. It should be understood that if the thin filmtransistor is a P-type transistor, then the first voltage signal is ahigh level signal, and the first voltage signal terminal is a high-levelsignal terminal.

The present disclosure aims to solve or alleviate at least one of thetechnical problems existing in the prior art, and provides a shiftregister, a gate driving circuit, and a display device with low powerconsumption and a simple structure.

The present disclosure has the following beneficial effects:

A shift register in the present disclosure includes two shift registerunits, namely a first shift register unit and a second shift registerunit, providing signals for different rows of gate lines. The two shiftregister units share a pull-down sub-circuit and a pull-down controlsub-circuit, that is, the first shift register unit and the second shiftregister unit are connected to a same pull-down node. A storagesub-circuit is added at the same time, then the potential of thepull-down node can be maintained, thereby achieving that after both ofthe two shift register units have been reset, the pull-down nodecontinuously discharges the pull-up node and the two signal outputterminals, which solves a noise voltage problem caused by clock signals,and improves a yield rate. At the same time, the two shift registerunits share a pull-down node, which reduces a number of transistors ascompared to existing shift registers, thereby effectively reducing powerconsumption.

Referring to FIG. 1 to FIG. 3, in some embodiments of the presentdisclosure, a shift register is provided. The shift register includes afirst shift register unit, a second shift register unit, a pull-downcontrol sub-circuit 20 and a pull-down sub-circuit 30. The first shiftregister unit comprises: a first input sub-circuit 11, a first outputsub-circuit 12, a first reset sub-circuit, and a first noise reductionsub-circuit 14. The second shift register unit comprises: a second inputsub-circuit 21, a second output sub-circuit 22, a second resetsub-circuit, and a second noise reduction sub-circuit 24.

For example, the first input sub-circuit 11 is configured to pre-chargea first pull-up node PU (N) under control of a first input signal. Thefirst pull-up node PU (N) is a connection node between the first inputsub-circuit 11, the first output sub-circuit 12, the pull-downsub-circuit 30, the first reset sub-circuit and the first noisereduction sub-circuit 14. The first output sub-circuit 12 is configuredto output a first clock signal through a first signal output terminalOutput (N) under control of a potential of the first pull-up node PU(N). The first reset sub-circuit is configured to reset potentials ofthe first pull-up node PU (N) and the first signal output terminalOutput (N) through a low-level signal under control of a first resetsignal. The second input sub-circuit 21 is configured to pre-charge asecond pull-up node PU (N+1) under control of a second input signal. Thesecond pull-up node PU (N+1) is a connection node between the secondinput sub-circuit 21, the second output sub-circuit 22, and thepull-down sub-circuit 30. The second output sub-circuit 22 is configuredto output a second clock signal through a second signal output terminalOutput (N+1) under control of a potential of the second pull node PU(N+1). The second reset sub-circuit is configured to reset potentials ofthe second pull-up node PU (N+1) and the second signal output terminalOutput (N+1) through a low-level signal under control of a second resetsignal. The pull-down control circuit 20 is configured to control apotential of a pull-down node PD under control of the first clock signalor the second clock signal. The pull-down sub-circuit 30 is configuredto pull down the potential of the pull-down node PD by the low-levelsignal under control of the potential of the first pull-up node PU (N)and the potential of the second pull-up node PU (N+1). The pull-downnode PD is a connection node between the pull-down sub-circuit 30, thepull-down control sub-circuit 20, a first noise reduction sub-circuit 14and a second noise reduction sub-circuit 24. The first noise reductionsub-circuit 14 is configured to reduce output noise of the first pull-upnode PU (N) and the first signal output terminal Output (N) by thelow-level signal under control of the pull-down node PD. The secondnoise reduction sub-circuit 24 is configured to reduce output noise ofthe second pull-up node PU (N+1) and the second signal output terminalOutput (N+1) through the low-level signal under control of the pull-downnode PD.

Since the shift register in some embodiments of the present disclosureincludes two shift register units, namely a first shift register unitand a second shift register unit, which provide signals for differentrows of gate lines. The two shift register units share a pull-downsub-circuit 30 and a pull-down control sub-circuit 20, that is to say,the first shift register unit and the second shift register unit areconnected to the same pull-down node PD, thereby sharing one pull-downnode PD. Hence, as compared to existing shift registers, the number oftransistors is reduced, thereby effectively reducing power consumption.A storage sub-circuit 40 may be additionally added to maintain thepotential of the pull-down node, so that after both of the two shiftregister units have been reset, the pull-down node PD continuouslydischarges for the pull-up nodes and the two signal output terminals,which solves a noise voltage problem caused by clock signals andimproves a yield rate.

Referring to FIG. 1 to FIG. 3, in some embodiments of the presentdisclosure, a shift register is provided. The shift register includes afirst shift register unit, a second shift register unit, a pull-downcontrol sub-circuit 20, and a pull-down sub-circuit 30, and one or morestorage capacitor. The first shift register unit comprises a first inputsub-circuit 11, a first output sub-circuit 12, a first reset sub-circuitand a first noise reduction sub-circuit 14. The second shift registerunit comprises the second input sub-circuit 21, the second outputsub-circuit 22, the second reset sub-circuit and the second noisereduction sub-circuit 24.

A specific description of a structure of the first shift register unitis as follows:

The first input sub-circuit 11 is connected to the first input signalterminal Input (N) and the first pull-up node PU (N), and is configuredto pre-charge the first pull-up node PU (N) by the first input signalinput through the first input signal terminal Input (N).

For example, the first input sub-circuit 11 may include a firsttransistor M1; wherein the first electrode and the control electrode ofthe first transistor M1 are both connected to the first input signalterminal Input (N), and the second electrode of the first transistor M1is connected to the first pull-up node PU (N).

In a pre-charging stage of the first shift register unit, when the firstinput signal input by the first input signal input terminal Input (N) isat a high level, the first transistor M1 is turned on. At this time, thehigh level signal can pass through the first transistor M1 to pre-chargethe first pull-up node PU (N).

The first output sub-circuit 12 is connected to the first clock signalterminal CLK, the first pull-up node PU (N), and the first signal outputterminal Output (N), and is configured to output the first clock signalinput by the first clock signal terminal CLK through the first signaloutput terminal Output (N) under control of the potential of the firstpull-up node PU (N).

For example, the first output sub-circuit 12 may include a thirdtransistor M3 and a first storage capacitor C1. The first electrode ofthe third transistor M3 is connected to the first clock signal terminalCLK, the second electrode of the third transistor M3 is connected to thefirst signal output terminal Output (N), and the control electrode ofthe third transistor M3 is connected to the first pull-up node PU (N). Afirst end of the first storage capacitor C1 is connected to the firstpull-up node PU (N), and a second end of the first storage capacitor C1is connected to the first signal output terminal Output (N).

During an output stage of the first shift register unit, since the firstpull-up node PU (N) is pulled up to the high level during the pre-chargestage, the third transistor M3 is turned on at this time; the firstclock signal input by the first clock signal terminal CLK is a highlevel signal, so the first signal output terminal Output (N) outputs ahigh level signal; at the same time, the potential of the first pull-upnode PU (N) further rises due to a bootstrap effect of the first storagecapacitor C1.

A first pull-up node reset unit 131 in the first reset sub-circuit isconnected to a first reset signal terminal RESET (N), the first pull-upnode PU (N) and a low-level signal terminal VGL to pull down thepotential of the first pull-up node by a low-level signal input by thelow-level signal terminal VGL under control of the first reset signalinput by a reset signal terminal RESET (N), so as to complete resettingof the first pull-up node PU (N). A first signal output terminal Output(N) reset unit 132 in the first reset sub-circuit is connected to asecond clock signal terminal CLKB, the first signal output terminalOutput (N), and the low-level signal terminal VGL to pull down thepotential of the first signal output terminal Output (N) through the lowlevel signal input by the low level signal terminal VGL under control ofa second clock signal input by the second clock signal terminal CLKB, soas to complete resetting of the first signal output Output (N).

For example, the first pull-up node PU (N) reset unit 131 may include asecond transistor M2. The first electrode of the second transistor M2 isconnected to the first pull-up node PU (N), and the second electrode ofthe second transistor M2 is connected to the low-level signal terminalVGL, and the control electrode of the second transistor M2 is connectedto the first reset signal terminal RESET (N). The first signal outputterminal Output (N) reset unit 132 may include a thirteenth transistorM13. The first electrode of the thirteenth transistor M13 is connectedto the first signal output terminal Output (N), the second electrode ofthe thirteenth transistor M13 is connected to the low-level signalterminal VGL, and the control electrode of the thirteenth transistor M13is connected to the second clock signal terminal CLKB.

During a reset stage of the first shift register unit, the first resetsignal input by the first reset signal terminal RESET (N) is a highlevel signal, the second transistor M2 is turned on, and the low levelsignal input by the low level signal terminal VGL pulls down thepotential of the first pull-up node PU (N) to complete resetting of thefirst pull-up node PU (N). Meanwhile, the second clock signal input bythe second clock signal terminal CLKB is a high level signal, thethirteenth transistor M13 is turned on, and the low-level signal inputby the low-level signal terminal VGL pulls down the potential of thefirst signal output terminal Output (N) to complete resetting of thefirst signal output terminal Output (N).

Of course, the first signal output terminal Output (N) reset unit 132 inthe first reset sub-circuit may not be connected to the second clocksignal terminal CLKB, but may be connected to the first reset signalterminal RESET (N), the first signal output terminal Output (N) and thelow level signal terminal VGL, as shown in FIG. 2. At this time, thefirst electrode of the thirteenth transistor M13 included in the firstsignal output terminal Output (N) reset unit 132 is connected to thefirst signal output terminal Output (N), and the second electrode of thethirteenth transistor M13 is connected to the low level signal terminalVGL, the control electrode of the thirteenth transistor M13 is connectedto the first reset signal terminal RESET (N). During the reset stage ofthe first shift register unit, the first reset signal input by the firstreset signal terminal RESET (N) is a high level signal, and the secondtransistor M2 and the thirteenth transistor M13 are both turned on, andthe low level signal input by the low level signal terminal VGL pullsdown potentials of the first pull-up node PU (N) and the first signaloutput terminal Output (N) to complete resetting of the first pull-upnode PU (N) and the first signal output terminal Output (N).

The first noise reduction sub-circuit 14 is connected to the firstpull-up node PU (N), the first signal output terminal Output (N), thepull-down node PD and the low-level signal terminal VGL, and isconfigured to reduce output noise of the first pull-up node PU (N) andthe first signal output terminal Output (N) by the low-level signalinput by the low-level signal terminal VGL under control of thepotential of the node PD.

For example, the first noise reduction sub-circuit 14 includes a fourthtransistor M4 and a fifteenth transistor M15. The first electrode of thefourth transistor M4 is connected to the first signal output terminalOutput (N), the second electrode of the fourth transistor M4 isconnected to the low-level signal terminal VGL, and the controlelectrode of the fourth transistor M4 is connected to the pull-down nodePD. The first electrode of the fifteenth transistor M15 is connected tothe first pull-up node PU (N), and the second electrode of the fifteenthtransistor M15 is connected to the low-level signal terminal VGL, andthe control electrode of the fifteenth transistor M15 is connected tothe pull-down node PD.

During a noise reduction stage of the first shift register unit, thepull-down node PD is pulled up to the high level and the storagesub-circuit 40 is charged at the same time. At this time, the fifteenthtransistor M15 is turned on to reduce output noise of the first pull-upnode PU (N). The fourth transistor M4 is turned on to reduce noise ofthe first signal output terminal Output (N).

The specific description of a structure of the second shift registerunit is as follows:

The second input sub-circuit 21 is connected to a second input signalterminal Input (N+1) and a second pull-up node PU (N+1), and isconfigured to pre-charge the second pull-up node PU (N+1) by a secondinput signal input by the second input signal terminal Input (N+1).

For example, the second input sub-circuit 21 may include a fifthtransistor M5. The first electrode and the control electrode of thefifth transistor M5 are both connected to the second input signalterminal Input (N+1), and the second electrode of the fifth transistorM5 is connected to the second pull-up node PU (N+1).

During the pre-charge stage of the second shift register unit, thesecond input signal terminal Input (N+1) is input with a high levelsignal, and the second pull-up node PU (N+1) is pre-charged with thehigh level signal.

The second output sub-circuit 22 is connected to the second clock signalterminal CLKB, the second pull-up node PU (N+1), and the second signaloutput terminal Output (N+1), and is configured to control the secondclock signal input by the second clock signal terminal CLKB to be outputthrough the second signal output terminal Output (N+1) under control ofthe potential of the second pull-up node PU (N+1).

For example, the second output sub-circuit 22 may include a seventhtransistor M7 and a second storage capacitor C2. The first electrode ofthe seventh transistor M7 is connected to the second clock signalterminal CLKB, the second electrode of the seventh transistor M7 isconnected to a second signal output terminal Output (N+1), and thecontrol electrode of the seventh transistor M7 is connected to thesecond pull-up node PU (N+1). A first end of the second storagecapacitor C2 is connected to the second pull-up node PU (N+1), and asecond end of the second storage capacitor C2 is connected to the secondsignal output terminal Output (N+1).

During the output stage of the second shift register unit, since thesecond pull-up node PU (N+1) is pulled up to a high level in thepre-charge stage, the fifth transistor M5 is turned on at this time; thesecond clock signal input by the second clock signal terminal CLKB is ahigh level signal, so the second signal output terminal Output (N+1)outputs a high level signal; meanwhile, due to the bootstrap effect ofthe second storage capacitor C2, the potential of the second pull-upnode PU (N+1) further rises.

A second pull-up node reset unit 231 in the second reset sub-circuit isconnected to a second reset signal terminal RESET (N+1), the secondpull-up node PU (N+1) and the low-level signal terminal VGL, and isconfigured to pull down the potential of the second pull-up node PU(N+1) by the low level signal input by the low level signal terminal VGLunder control of the second reset signal input by the second resetsignal terminal RESET (N+1), so as to complete resetting of the secondpull-up node PU (N+1). A second signal output terminal output (N+1)reset unit 232 in the second reset sub-circuit is connected to the firstclock signal terminal CLK, the low-level signal terminal VGL and thesecond signal output terminal Output (N+1), and is configured to pulldown the potential of the second signal output terminal Output (N+1) bythe low-level signal input by the low-level signal terminal VGL undercontrol of the first clock signal input by the first clock signalterminal CLK, so as to complete resetting of the second signal outputterminal Output (N+1).

For example, the second pull-up node PU (N+1) reset unit 231 may includea sixth transistor M6. The second signal output terminal Output (N+1)reset unit 232 may include a fourteenth transistor M14. The firstelectrode of the sixth transistor M6 is connected to the second pull-upnode PU (N+1), the second electrode of the sixth transistor M6 isconnected to the low-level signal terminal VGL, and the controlelectrode of the sixth transistor M6 is connected to the second resetsignal terminal RESET (N+1). The first electrode of the fourteenthtransistor M14 is connected to the second signal output terminal Output(N+1), the second electrode of the fourteenth transistor M14 isconnected to the low-level signal terminal VGL, and the controlelectrode of the fourteen transistor M14 is connected to the first clocksignal terminal CLK.

During the reset stage of the second shift register unit, the resetsignal input by the second reset signal terminal RESET (N+1) is a highlevel signal, the sixth transistor M6 is turned on, and the secondpull-up node PU (N+1) is pulled down to a low level, i.e., the reset ofthe second pull-up node PU (N+1) is completed. The signal written by thefirst clock signal terminal CLK is also a high-level signal, and thefourteenth transistor M14 is turned on. The second signal outputterminal Output (N+1) is pulled down to a low level, that is, the resetof the second signal output terminal Output (N+1) is completed.

Of course, the second signal output terminal Output (N+1) reset unit 232in the second reset sub-circuit may also be not connected to the firstclock signal terminal CLK, but may be connected to the second resetsignal terminal RESET (N+1), the second signal output terminal Output(N+1) and the low level signal terminal VGL, as shown in FIG. 2. At thistime, the first electrode of the fourteenth transistor M14 included inthe second signal output terminal Output (N+1) reset unit 232 isconnected to the second signal output terminal Output (N+1), the secondelectrode of the fourteenth transistor M14 is connected to the low-levelsignal terminal VGL, and the control electrode of the fourteenthtransistor M14 is connected to the second reset signal terminal RESET(N+1). During the reset stage of the second shift register unit, thesecond reset signal input by the second reset signal terminal RESET(N+1) is a high level signal, and the sixth transistor M6 and thefourteenth transistor M14 are both turned on, the potentials of thesecond pull-up node PU (N+1) and the second signal output terminalOutput (N+1) are pulled down by the low-level signal input by the levelsignal terminal VGL, so as to complete resetting of the second pull-upnode PU (N+1) and the second signal output Output (N+1).

The second noise reduction sub-circuit 24 is connected to the secondpull-up node PU (N+1), the second signal output terminal Output (N+1),the pull-down node PD, and the low-level signal terminal VGL, and isconfigured to reduce output noise of the second pull-up node PU (N+1)and the second signal output terminal Output (N+1) by the low-levelsignal input by the low-level signal terminal VGL under control of thepotential of the pull-down node PD.

For example, the second noise reduction sub-circuit 24 includes aneighth transistor M8 and a sixteenth transistor M16. The first electrodeof the eighth transistor M8 is connected to the second signal outputterminal Output (N+1), the second electrode of the eighth transistor M8is connected to the low-level signal terminal VGL, and the controlelectrode of the eighth transistor M8 is connected to the pull-down nodePD. The first electrode of the sixteenth transistor M16 is connected tothe second pull-up node PU (N+1), and the second electrode of thesixteenth transistor M16 is connected to the low-level signal terminalVGL, and the control electrode of the sixteenth transistor M16 isconnected to the pull-down node PD.

During the noise reduction stage of the second shift register unit, thepull-down node PD is pulled up to the high level and the storagesub-circuit 40 is charged at the same time. At this time, the sixteenthtransistor M16 is turned on to reduce output noise of the second pull-upnode PU (N+1). The eighth transistor M8 is turned on to reduce noise ofthe second signal output terminal Output (N+1).

The above is an introduction to the first shift register unit and thesecond shift register unit in the shift register in some embodiments ofthe present disclosure; next, specific structures of the storagesub-circuit 40, the pull-down sub-circuit 30 and the pull-down controlsub-circuit 20 in some embodiments of the present disclosure aredescribed.

In some embodiments of the present disclosure, the storage sub-circuit40 in the shift register includes a third storage capacitor C3. A firstend of the third storage capacitor C3 is connected to the pull-down nodePD, and a second end of the third storage capacitor C3 is connected tothe low-level signal terminal VGL. The third storage capacitor C3 isused to maintain the potential of the pull-down node PD.

The pull-down control sub-circuit 20 is connected to the second clocksignal input terminal and the pull-down node PD, and is configured tocharge the pull-down node PD under control of the second clock signalinput by the second clock signal input terminal, that is, to charge thestorage capacitor C3 so that the third storage capacitor C3 maintainsthe pull-down node PD at a high potential after the first shift registerunit and the second shift register unit are reset, so that the firstnoise reduction sub-circuit 14 and the second noise reductionsub-circuit 24 can continuously reduce noises of signals output by thefirst pull-up node PU (N), the second pull-up node PU (N+1), the firstsignal output terminal Output (N), and the second signal output terminalOutput (N+1).

For example, the pull-down control sub-circuit 20 may include aneleventh transistor M11. The first electrode and the control electrodeof the eleventh transistor M11 are both connected to the first clocksignal terminal, and the second electrode of the eleventh transistor M11is connected to the pull down node PD.

In a noise reduction stage of the first shift register unit and thesecond shift register unit, the second clock signal written by thesecond clock signal terminal CLKB is a high level signal, the eleventhtransistor M11 is turned on, and the node PD is pulled up to the highlevel, and charges the storage capacitor C3 at the same time.

Of course, the pull-down control sub-circuit 20 may also be connected tothe first clock signal input terminal and the pull-down node PD forcharging the pull-down node PD, namely charging he third storagecapacitor C3, under control of the first clock signal inputted from thefirst clock signal input terminal, then the third storage capacitor C3maintains the pull-down node PD at a high potential after the firstshift register unit and the second shift register unit are reset, sothat the first noise reduction sub-circuit 14 and the second noisereduction sub-circuit 24 can continuously reduce noise of signals outputfrom the first pull-up node PU (N), the second pull-up node PU (N+1),the first signal output terminal Output (N), and the second signaloutput terminal Output (N+1).

For example, the pull-down control sub-circuit 20 may include aneleventh transistor M11; wherein the first electrode and the controlelectrode of the eleventh transistor M11 are both connected to the firstclock signal terminal CLK, and the second electrode of the eleventhtransistor M11 is connected to the Pull down node.

During a noise reduction stage of the first shift register unit and thesecond shift register unit, the first clock signal written by the firstclock signal terminal CLK is a high level signal, the eleventhtransistor M11 is turned on, and the pull down node PD is pulled up to ahigh level and the storage capacitor C3 is charged at same time.

The pull-down sub-circuit 30 is connected to the first pull-up node PU(N), the second pull-up node PU (N+1), the low-level signal terminal VGLand the pull-down node PD. It is configured to pull down the potentialof the pull-down node PD by the low-level signal input by the low-levelsignal terminal VGL under control of the potentials of the first pull-upnode PU (N) and the second pull-up node PU (N+1).

For example, the pull-down sub-circuit 30 may include a ninth transistorM9, a tenth transistor M10, and a twelfth transistor M12. The firstelectrode and the control electrode of the ninth transistor M9 are bothconnected to the first pull-up node PU (N). The second electrode of theninth transistor M9 is connected to the control electrode of the twelfthtransistor M12. The first electrode and the control electrode of thetenth transistor M10 are both connected to the second pull-up node PU(N+1), and the second electrode of the tenth transistor M10 is connectedto the control electrode of the twelfth transistor M12. The firstelectrode of the twelfth transistor M12 is connected to the pull-downnode PD, the second electrode of the twelfth transistor M12 is connectedto the low-level signal terminal VGL, and the control electrode of thetwelfth transistor M12 is connected to the second electrode of the ninthtransistor M9 and the second electrode of the tenth transistor M10.

The turn-on and turn-off of the ninth transistor M9 and the tenthtransistor M10 are controlled by the potentials of the first pull-upnode PU (N) and the second pull-up node PU (N+1), respectively, and thetwelfth transistor M12 is controlled by the potential of the firstpull-up node PU (N) output by the ninth transistor M9 and the potentialof the second pull-up node PU (N+1) output by the tenth transistor M10.Hence, as long as one of the potentials of the first pull-up node PU (N)and the second pull-up node PU (N+1) is a high level signal, the twelfthtransistor M12 will be turned on, and at this time the potential of thepull-down node PD is pulled down by the low level signal input by thelow level signal terminal VGL.

The operation principle of the shift register in some embodiments of thepresent disclosure will be described below with reference to FIGS. 1 and4.

A first stage (the pre-charging stage of the first shift register unit):The first input signal written by the first input signal terminal Input(N) is a high level signal, the first transistor M1 is turned on, andthe first input signal passes through the first transistor M1 to chargethe first storage capacitor C1 so that the potential of the firstpull-up node PU (N) is pulled high; since the first pull-up node PU (N)is at the high level at this time, the ninth transistor M9 and thetwelfth transistor M12 are turned on, the storage capacitor C3 isdischarged, and the potential of the pull-down node PD is pulled down toa low level; at this time, the potential of the pull-down node PD is ata low level, so the fourth transistor M4 and the fifteenth transistorM15 are turned off, and the first clock signal is low at the same time,thereby ensuring that the first signal output terminal Output (N)outputs a stable low-level signal.

A second stage (the output stage of the first shift register unit andthe pre-charging stage of the second shift register unit): The firstinput signal written by the first input signal terminal Input (N) is alow level signal, the first transistor M1 is turned off, the firstpull-up node PU (N) continues to maintain a high potential, and thethird transistor M3 is kept in an on state. At this time, the firstclock signal input by the first clock signal terminal CLK is ahigh-level signal, the first pull-up node PU (N) further pulls up thepotential of the first pull-up node PU (N) due to a bootstrap effect ofthe first storage capacitor C1 to make the first signal output terminalOutput (N) output a high level signal. Since the first pull-up node PU(N) is at a high potential, the ninth transistor M9 and the twelfthtransistor M12 are in an on state, so the pull-down node PD is alow-level signal, the fourth transistor M4 and the fifteenth transistorM15 continues to be turned off, at the same time the second clock signalwritten by the second clock signal terminal CLKB is a low level signal,and the thirteenth transistor M13 is in an off state to ensure stabilityof signals output by the first signal output terminal Output (N).

In some embodiments, the high-level signal output by the first signaloutput terminal Output (N) in the first shift register unit may be usedas the second input signal written by the second input signal terminalInput (N+1) in the second shift register unit in the shift register ofthe stage. At this time, the fifth transistor M5 is turned on, thesecond pull-up node PU (N+1) is pulled high, and the second storagecapacitor C2 is charged at the same time. At this time, the second clocksignal written by the second clock signal terminal CLKB is a low levelsignal, so the second signal output terminal Output (N+1) outputs a lowlevel signal. At the same time, the second pull-up node PU (N+1) ispulled high so that the tenth transistor M10 and the twelfth transistorM12 are turned on, so the pull-down node PD is at a low level, and theeighth transistor M8 and the sixteenth transistor M16 are turned off toensure that the second signal output terminal Output (N+1) outputs astable low-level signal.

A third stage (the reset stage of the first shift register unit and theoutput stage of the second shift register unit): the reset signalwritten by the first reset signal terminal RESET (N) is at a high leveland the second clock signal written by the second clock signal terminalCLKB is at a high level. At this time, the second transistor M2 and thefifteenth transistor M15 are turned on, and the first pull-up node PU(N) is pulled down to a low level, that is, resetting of the pull-downnode PD is completed. The thirteenth transistor M13 is turned on, andthe first signal output terminal Output (N) is pulled down to a lowlevel, and resetting of the first signal output terminal Output (N) iscompleted at this time.

At the same time, since the signal output by the first signal outputterminal Output (N) in the first shift register unit is used as an inputof the second input signal terminal Input (N+1) in the second shiftregister unit, the fifth transistor M5 is turned off, and the secondstorage capacitor C2 is discharged. Due to the bootstrap effect of thesecond storage capacitor C2, the potential of the second pull-up node PU(N+1) is amplified, and the second clock signal is at a high level, theseven transistor M7 is turned on, so the second signal output terminalOutput (N+1) outputs a high level signal. It should be noted here thatsince the second pull-up node PU (N+1) is at a high level at this time,the tenth transistor M10 and the twelfth transistor M12 are turned on,so the pull-down node PD is pulled low. Although the second clock signalis at a high level and the eleventh transistor M11 is turned on, but thepull-down node PD will not be pulled high. This is because the aspectratio of the eleventh transistor M11 as selected is smaller than thoseof the tenth transistor M10 and the twelfth transistor M12.

It should be noted here that since the signal input by the first resetsignal terminal RESET (N) is a high level signal at this stage, thesignal output by the second signal output terminal Output (N+1) at thisstage is just a high level signal, so the second signal output terminalOutput (N+1) may provide a reset signal for the first reset signalterminal RESET (N).

The fourth stage (the reset stage of the second shift register unit):the reset signal written by the second reset signal terminal RESET (N+1)is a high level signal, the sixth transistor M6 is turned on, and thesecond pull-up node PU (N+1) is pulled down to a low level, that is, thereset of the second pull-up node PU (N+1) is completed; the first clocksignal written by the first clock signal terminal CLK is also ahigh-level signal, the fourteenth transistor M14 is turned on, and thesecond signal output terminal Output (N+1) is pulled down to a lowlevel, that is, the reset of the second signal output terminal Output(N+1) is completed.

The fifth stage (the noise reduction stage of the first shift registerunit and the second shift register unit): the second clock signalwritten by the second clock signal terminal CLKB is a high level signal,the eleventh transistor M11 is turned on, the pull-down node PD ispulled up to the high level and the third storage capacitor C3 ischarged at the same time. At this time, the fifteenth transistor M15 isturned on to reduce output noise of the first pull-up node PU (N). Thefourth transistor M4 is turned on to reduce noise of the first signaloutput terminal Output (N). The sixth transistor M6 is turned on toreduce output noise of the second pull-up node PU (N+1). The eighthtransistor M8 is turned on to reduce noise of the second signal outputterminal Output (N+1). Of course, the thirteenth transistor M13 iscontrolled by the second clock signal and is also turned on at this timeto stably reduce noise of the first signal output terminal Output (N).After that, although the second clock signal changes to a low level at acertain interval, a high potential of the pull-down node PD may bemaintained by the third storage capacitor C3 so as to continue toperform pull-down noise reduction for the first pull-up node PU (N), thesecond pull-up node PU (N+1), the first signal output terminal Output(N), and the second signal output terminal Output (N+1). Wherein, whenthe second clock signal is at a low level, the first clock signalwritten by the first clock signal terminal CLK is a high level signal,and the fourteenth transistor M14 is turned on to stably reduce thenoise of the second signal output terminal Output (N+1).

After that, repeat the fifth stage until an arrival of the next frame.

It should be noted here that when the first electrode and the controlelectrode of the eleventh transistor M11 of the pull-down controlsub-circuit 20 in the shift register unit as used are both connected tothe first clock signal terminal CLK and the second electrode of thefirst transistor 11 is connected to the pull-down node PD, the method ofdriving the shift register is similar to the above method except for thefourth stage (the reset stage of the second shift register unit) and thefifth stage (the noise reduction stage of the first shift register unitand the second shift register unit). As shown in FIG. 3 and FIG. 5, thefourth stage and the fifth stage may include:

The fourth stage (the reset stage of the second shift register unit):the reset signal written by the second reset signal terminal RESET (N+1)is a high level signal, the sixth transistor M6 is turned on, and thesecond pull-up node PU (N+1) is pulled down to a low level, that is, thereset of the second pull-up node PU (N+1) is completed. The first clocksignal written by the first clock signal terminal CLK is also ahigh-level signal, the fourteenth transistor M14 is turned on, and thesecond signal output terminal Output (N+1) is pulled down to a lowlevel, that is, the reset of the second signal output terminal Output(N+1) is completed. At the same time, since the first clock signalwritten by the first clock signal terminal CLK is a high level signal,the eleventh transistor M11 is also turned on, and at this time, thepull-down node PD is pulled up to a high level, and at the same time,the third storage capacitor C3 is charged.

The fifth stage (the noise reduction stage of the first shift registerunit and the second shift register unit): Since the third storagecapacitor C3 is charged at the fourth stage, the pull-down node PD canbe maintained at a high potential by the third storage capacitor C3 atthis time, the fifteenth transistor M15 is turned on to reduce outputnoise of the first pull-up node PU (N). The fourth transistor M4 isturned on to reduce noise of the first signal output terminal Output(N). The transistor M6 is turned on to reduce output noise of the secondpull-up node PU (N+1). The eighth transistor M8 is turned on to reducenoise of the second signal output terminal Output (N+1). Of course, thethirteenth transistor M13 is controlled by the second clock signal andis also turned on at this time to stably reduce noise of the firstsignal output terminal Output (N). After that, although the first clocksignal changes to a low level at a certain interval, the high potentialof the pull-down node PD may be maintained by the third storagecapacitor C3 so as to continuously perform pull-down noise reduction forthe first pull-up node PU (N), the second pull-up node PU (N+1), thefirst signal output terminal Output (N), and the second signal outputterminal Output (N+1). Wherein, when the first clock signal is at a lowlevel, the first clock signal written by the first clock signal terminalCLK is a high level signal, and the fourteenth transistor M14 is turnedon to stably reduce noise of the second signal output terminal Output(N+1).

As shown in FIG. 6, in some embodiments of the present disclosure, thereis provided a gate driving circuit including shift registers in theabove embodiments, wherein a first input signal terminal Input (N) of afirst shift register unit in a shift register at each stage is connectedto a second signal output terminal Output (N+1) of a second shiftregister unit in a shift register at a previous stage; a first resetsignal terminal RESET (N) of the first shift register unit in the shiftregister in each stage is connected to a second signal output terminalOutput (N+1) of a second shift register unit in the shift register atthe current stage; a first signal output terminal Output (N) of theshift register unit of the shift register at each stage is connected toa second input signal terminal Input (N+1) of the second shift registerunit in the shift register at the current stage; the second signaloutput terminal Output (N+1) of the second shift register unit of theshift register at each stage is connected to a first signal inputterminal of a first shift register unit in a shift register at a nextstage; a second reset signal terminal RESET (N+1) of the second shiftregister unit of the shift register at each stage is connected to afirst signal output terminal of the first shift register unit in theshift register at the next stage.

Since the gate driving circuit in some embodiments of the presentdisclosure includes shift registers as described in the aboveembodiments, its power consumption is small and the cost is low.

Correspondingly, in some embodiments of the present disclosure, adisplay device is also disclosed that includes the above-described gatedriving circuit. Due to the inclusion of the above-described gatedriving circuit, it can realize a frame-narrowed design.

The display device may be any product or component having a displayfunction such as a mobile phone, a tablet computer, a television, amonitor, a notebook computer, a digital photo frame, a navigator, andthe like.

Of course, the display device in some embodiments of the presentdisclosure may also include other conventional structures such as apower supply unit, a display driving unit, and the like.

It can be understood that the above embodiments are for illustrating theprinciple of the present disclosure, but the present disclosure is notlimited thereto. For a person of ordinary skill in the art, variousvariations and improvements may be made without departing from thespirit and essence of the present disclosure, and these variations andimprovements are also considered to be within the protection scope ofthe present disclosure.

1. A shift register circuitry comprising: a first shift register unit, asecond shift register unit, a pull-down control sub-circuit, and apull-down sub-circuit; wherein the first shift register unit comprises:a first input sub-circuit, a first output sub-circuit, a first resetsub-circuit, and a first noise reduction sub-circuit; the second shiftregister unit includes: a second input sub-circuit, a second outputsub-circuit, a second reset sub-circuit, and a second noise reductionsub-circuit; wherein the first input sub-circuit is configured topre-charge a first pull-up node under control of a first input signal;the first pull-up node is a connection node between the first inputsub-circuit, the first output sub-circuit, the pull-down sub-circuit,the first reset sub-circuit, and the first noise reduction sub-circuit;the first output sub-circuit is configured to output a first clocksignal through a first signal output terminal under control of apotential of the first pull-up node; the first reset sub-circuit isconfigured to reset potentials of the first pull-up node and the firstsignal output terminal through a first voltage signal under control of afirst reset signal; the second input sub-circuit is configured topre-charge a second pull-up node under control of a second input signal;the second pull-up node is a connection node between the second inputsub-circuit, the second output sub-circuit and the pull-downsub-circuit; the second output sub-circuit is configured to output asecond clock signal through a second signal output terminal undercontrol of a potential of the second pull-up node; the second resetsub-circuit is configured to reset potentials of the second pull-up nodeand the second signal output terminal through the first voltage signalunder control of a second reset signal; the pull-down controlsub-circuit is configured to control a potential of a pull-down nodeunder control of the first clock signal or the second clock signal; thepull-down node is a connection node between the pull-down controlsub-circuit, the pull-down sub-circuit, the first noise reductionsub-circuit and the second noise reduction sub-circuit; the pull-downsub-circuit is configured to pull down a potential of the pull-down nodethrough the first voltage signal under control of a potential of thefirst pull-up node and a potential of the second pull-up node; the firstnoise reduction sub-circuit is configured to reduce output noise of thefirst pull-up node and the first signal output terminal through thefirst voltage signal under control of the pull-down node; and the secondnoise reduction sub-circuit is configured to reduce output noise of thesecond pull-up node and the second signal output terminal through thefirst voltage signal under control of the pull-down node.
 2. The shiftregister circuitry according to claim 1, further comprising a storagesub-circuit configured to maintain the potential of the pull-down node.3. The shift register circuitry according to claim 1, wherein the firstinput sub-circuit includes a first transistor; wherein a first electrodeand a control electrode of the first transistor are both connected to afirst input signal terminal, and a second electrode of the firsttransistor is connected to the first pull-up node.
 4. The shift registercircuitry according to claim 1, wherein the first output sub-circuitincludes a third transistor and a first storage capacitor; wherein afirst electrode of the third transistor is connected to a first clocksignal terminal, a second electrode of the third transistor is connectedto a first signal output terminal, and a control electrode of the thirdtransistor is connected to the first pull-up node; and a first end ofthe first storage capacitor is connected to the first pull-up node, anda second end of the first storage capacitor is connected to the firstsignal output terminal.
 5. The shift register circuitry according toclaim 1, wherein the first reset sub-circuit comprises: a secondtransistor and a thirteenth transistor; wherein a first electrode of thesecond transistor is connected to the first pull-up node, a secondelectrode of the second transistor is connected to a first voltagesignal terminal, and a control electrode of the second transistor isconnected to a first reset signal terminal; and a first electrode of thethirteenth transistor is connected to the first signal output terminal,a second electrode of the thirteenth transistor is connected to thefirst voltage signal terminal, and a control electrode of the thirteenthtransistor is connected to a second clock signal terminal.
 6. The shiftregister circuitry according to claim 1, wherein the first resetsub-circuit comprises: a second transistor and a thirteenth transistor;wherein a first electrode of the second transistor is connected to thefirst pull-up node, a second electrode of the second transistor isconnected to a first voltage signal terminal, and a control electrode isconnected to a first reset signal terminal; and a first electrode of thethirteenth transistor is connected to the first signal output terminal,a second electrode of the thirteenth transistor is connected to a firstvoltage signal terminal, and a control electrode of the thirteenthtransistor is connected to the first reset signal terminal.
 7. The shiftregister circuitry according to claim 1, wherein the first noisereduction sub-circuit comprises a fourth transistor and a fifteenthtransistor; wherein a first electrode of the fourth transistor isconnected to the first signal output terminal, a second electrode of thefourth transistor is connected to a first voltage signal terminal, and acontrol electrode of the fourth transistor is connected to the pull-downnode; and a first electrode of the fifteenth transistor is connected tothe first pull-up node, a second electrode of the fifteenth transistoris connected to a first voltage signal terminal, and a control electrodeof the fifteenth transistor is connected to the pull-down node.
 8. Theshift register circuitry according to claim 1, wherein the second inputsub-circuit comprises a fifth transistor; wherein a first electrode anda control electrode of the fifth transistor are both connected to asecond input signal terminal, and a second electrode of the fifthtransistor is connected to the second pull-up node.
 9. The shiftregister circuitry according to claim 1, wherein the second outputsub-circuit includes a seventh transistor and a second storagecapacitor; wherein a first electrode of the seventh transistor isconnected to a second clock signal terminal, a second electrode of theseventh transistor is connected to the second signal output terminal,and a control electrode of the seventh transistor is connected to thesecond pull-up node; and a first end of the second storage capacitor isconnected to the second pull-up node, and a second end of the secondstorage capacitor is connected to the second signal output terminal. 10.The shift register circuitry according to claim 1, wherein the secondreset sub-circuit comprises a sixth transistor and a fourteenthtransistor; wherein a first electrode of the sixth transistor isconnected to the second pull-up node, a second electrode of the sixthtransistor is connected to a first voltage signal terminal, and acontrol electrode of the sixth transistor is connected to a second resetsignal terminal; and a first electrode of the fourteenth transistor isconnected to the second signal output terminal, a second electrode ofthe fourteenth transistor is connected to the first voltage signalterminal, and a control electrode of the fourteenth transistor isconnected to a first clock signal terminal.
 11. The shift registercircuitry according to claim 1, wherein the second reset sub-circuitcomprises a sixth transistor and a fourteenth transistor; wherein afirst electrode of the sixth transistor is connected to the secondpull-up node, a second electrode of the sixth transistor is connected toa first voltage signal terminal, and a control electrode of the sixthtransistor is connected to a second reset signal terminal; and a firstelectrode of the fourteenth transistor is connected to the second signaloutput terminal, a second electrode of the fourteenth transistor isconnected to the first voltage signal terminal, and a control electrodeof the fourteenth transistor is connected to a second reset signalterminal.
 12. The shift register circuitry according to claim 1, whereinthe second noise reduction sub-circuit comprises an eighth transistorand a sixteenth transistor; wherein a first electrode of the eighthtransistor is connected to the second signal output terminal, a secondelectrode of the eighth transistor is connected to a first voltagesignal terminal, and a control electrode of the eighth transistor isconnected to the pull-down node; and a first electrode of the sixteenthtransistor is connected to the second pull-up node, a second electrodeof the sixteenth transistor is connected to a first voltage signalterminal, and a control electrode of the sixteenth transistor isconnected to the pull-down node.
 13. The shift register circuitryaccording to claim 1, wherein the pull-down sub-circuit comprises aninth transistor, a tenth transistor, and a twelfth transistor; whereina first electrode and a control electrode of the ninth transistor areboth connected to the first pull-up node, and a second electrode of theninth transistor is connected to a control electrode of the twelfthtransistor; a first electrode and a control electrode of the tenthtransistor are both connected to the second pull-up node, and a secondelectrode of the tenth transistor is connected to the control electrodeof the twelfth transistor, and a first electrode of the twelfthtransistor is connected to the pull-down node, a second electrode of thetwelfth transistor is connected to a first voltage signal terminal, andthe control electrode of the twelfth transistor is connected to thesecond electrode of a first transistor and the second electrode of thetenth transistor.
 14. The shift register circuitry according to claim 1,wherein the pull-down control sub-circuit comprises an eleventhtransistor; wherein a first electrode and a control electrode of theeleventh transistor are both connected to a second clock signalterminal, and a second electrode of the eleventh transistor is connectedto the pull-down node.
 15. The shift register circuitry according toclaim 1, wherein the pull-down control sub-circuit comprises an eleventhtransistor; wherein a first electrode and a control electrode of theeleventh transistor are both connected to a first clock signal terminal,and a second electrode of the eleventh transistor is connected to thepull-down node.
 16. The shift register circuitry of claim 2, wherein thestorage sub-circuit includes a third storage capacitor; wherein a firstend of the third storage capacitor is connected to the pull-down node,and a second end of the third storage capacitor is connected to thefirst voltage signal terminal.
 17. A gate driving circuit comprisingshift register circuitries of claim
 1. 18. The gate driving circuit ofclaim 17, wherein a first input signal terminal of a first shiftregister unit of a shift register circuitry at each stage is connectedto a second signal output terminal of a second shift register unit of ashift register circuitry at a previous stage; a first reset signalterminal of the first shift register unit of the shift registercircuitry at each stage is connected to a second signal output terminalof a second shift register unit of the shift register circuitry atcurrent stage; a first signal output terminal of the first shiftregister unit of the shift register circuitry at each stage is connectedto a second signal input terminal of the second shift register unit ofthe shift register circuitry at current stage; a second signal outputterminal of the second shift register unit of the shift registercircuitry at each stage is connected to a first signal input terminal ofa first shift register unit of a shift register circuitry at a nextstage; and a second reset signal terminal of the second shift registerunit of the shift register circuitry at each stage is connected to afirst signal output terminal of the first shift register unit of theshift register circuitry at the next stage.
 19. A display devicecomprising the gate driving circuit of claim
 17. 20. The display deviceaccording to claim 19, wherein a first input signal terminal of a firstshift register unit of a shift register circuitry at each stage isconnected to a second signal output terminal of a second shift registerunit of a shift register circuitry at a previous stage; a first resetsignal terminal of the first shift register unit of the shift registercircuitry at each stage is connected to a second signal output terminalof a second shift register unit of the shift register circuitry atcurrent stage; a first signal output terminal of the first shiftregister unit of the shift register circuitry at each stage is connectedto a second signal input terminal of the second shift register unit ofthe shift register circuitry at current stage; a second signal outputterminal of the second shift register unit of the shift registercircuitry at each stage is connected to a first signal input terminal ofa first shift register unit of a shift register circuitry at a nextstage; and a second reset signal terminal of the second shift registerunit of the shift register circuitry at each stage is connected to afirst signal output terminal of the first shift register unit of theshift register circuitry at the next stage.